| 主权项 |
1. A silicone hollow fiber having a wall, the wall generally enclosing and defining an interior space, the wall having an internal surface adjacent the interior space and an opposed external surface, the wall extending between a first end and a second end; the wall comprising a reaction product of a curable composition comprising:
a) one or more siloxane polymers having the structural formula:where each R1, R2, R2′, R3, R4, R5, R6, R7 and R8 is independently selected from the group consisting of: CH3, CH2CH3, CH2CH2CH3, CH2CH2CH2CH3, CH2CH2CF3, phenyl, CH═CH2, OH, OCH3, epoxy, carbinol, methacrylate, acrylate and H; where at least one of x, y and z is present, where x is absent or is an integer in the range of 1-2500, inclusive, where z is absent or is an integer in the range of 1-2500, inclusive, and where y is absent or is an integer in the range of 1-20000, inclusive;
b) a silicone resin in an amount in the range of 40-80 parts per hundred, the silicone resin selected from the group consisting of: polysilsesquioxane; T-resin of the composition RSiO1.5, where R is selected from: CH3, CH2CH3, CH2CH2CH3, CH2CH2CH2CH3, CH2CH2CF3, phenyl, CH═CH2, OH, epoxy, carbinol, methacrylate, acrylate and H; and Q Resin having the structural formula:where each R is independently selected from the group consisting of: CH3, CH2CH3, CH2CH2CH3, CH2CH2CH2CH3, CH2CH2CF3, phenyl, CH═CH2, OH, epoxy, carbinol, methacrylate, acrylate and H; and combinations of any two or more thereof; and
c) a catalyst,wherein the reaction product is characterized by a PMPCO2 greater than 30,000 Barrer*MPa. |
